Track-sander.



C. P. WHITE.

TRACK SANDER.

APPLICATION FILED JAN. 15, 1910.

957,482, Patented May 10, 1910.

ammamX o'r TRACK-SANDER.

Original application filed. May 21, 1908, Serial No. 434,121.

Specification of Letters Patent.

Patented May 10, 1910.

Divided and this application filed January 15,

1910. Serial N0. 538,303.

To all whom it may concern:

Be it known that I, CHARLES P. VI-UTE, citizen of the United States,residing at Greensboro, in the county of Guilford and State of NorthCarolina, have invented certain new and useful Improvements in Track-Sanders, of which the following is a specification.

This invention comprehends certain new and useful improvements in tracksanding devices and relates particularly to track sanders of the fluidpressure type, the present case being a divisional application of myprior Letters Patent of the United States, issued to me May 4, 1909, No.920,230.

The primary object of my present invention is an improved constructionof sander of this type, which may be easily applied to the sand dome ofa locomotive without the necessity of materially altering theconstruction of the dome, without the necessity of fitting the steam orair pressure pipes within the dome, without interfering in the op.-eration of the ordinary manually operated valves for controlling thegravitational flow of sand from the sand dome or box to the rails, andwith the positive advantages which result from the fact that the hereindescribed sander of my invention may be applied from the outside of thebox and detached from the sand dome or box for the purposes of repair orthe like and replacement, without the necessity of emptying out thesand, or of any operation of pipe fitting within the sand dome.

The invention also has for its object a sand applying device which is soconstructed and arranged as to effectually prevent the accidental flowor waste of sand from the dome, and more specifically has for its objset a sander in which the fluid pressure pipe that is utilized to effectthe discharge of sand is protected and prevented from being clogged up,owing to the construction, arrangement and disposition and location ofthe parts of my device, the invention securing this advantageous result,while at the same time eliminating all mechanical arrangement inside ofthe sand dome to accomplish such result. And the invention also has forits object to simplify, render more durable, and generally promote theefiiciency of this class of devices, and to this end and also for theabove named objects, the invention consists in certain constructions,arrangements and combinations of the parts that I shall hereinafterfully describe and claim.

For a full understanding of the invention, reference is to be had to thefollowing description and accompanying drawings, in which:

Figure 1 is a sectional view of a portion of a sand dome wall with oneof my improved sanders applied thereto; Fig. 2 is a side elevation ofanother form of the device. Fig. 3 is a longitudinal sectional Viewthereof, the section being taken substantially on the line 33 of Fig. 2;Fig. i is a sectional side elevation of a modified form of the device;and, Fig. 5 is a detail sectional view of a modified form of fluidpressure nozzle which may be employed in lieu of the nozzles illustratedin Figs. 1, 2 and 3.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

It is to be understood that my invention has to do primarily with thatport-ion of a sanding appliance that is secured to or directlyincorporated with the sand box or dome.

In the drawing the reference numeral 1 designates a portion of a sanddome wall, 2 designating the inner surface thereof and 3 the outersurface.

In that embodiment of my invention illustrated in Fig. 1, 4 designates acast-ing which is preferably a one-piece structure secured to the sanddome wall 1 in any desired manner and applied thereto from the outsidewithout the necessity of any inside attachment, the said casting or bodyportion a being preferably so located that it will occupy a positionpartly within and partly without the sand dome, as clearly illustratedin Fig. 1. The body portion 4 is formed with a preferably regularlycurved sand outlet passage 5 designed to lead to a sand delivery pipe,(not shown) said pipe being connected in any desired way to theoutermost end 6 of the body portion. It is to be particularly noted thatthe receiving end 7 of the sand outlet passage 5 extends upwardly andoutwardly from the sand dome at an angle preferably of substantially 35,and that its entrance extremity 8 is defined by a wall which projectsinwardly at an oblique angle to the Wall 1 of the sand dome, occupyingan overhanging position and thereby forming a shield, this constructionand arrangement effectively preventing any accidental flow of sand outthrough the passage 5 and preventing the waste thereof.

In addition to the passage 5, the body portion th of the sander isformed with a fluid continuation of the fluid pressure inlet passage.The said nozzle 12 is provided with a returned inner end 12 which ispreferably outwardly flared at its extremity, or bellshaped, asindicated at 13, and it is to be particularly noted that the fluidpressure passage thus formed by the passage 9 and nozzle 11, extendsdownwardly and inwardly into the sand dome and thence curves downwardlyand backwardly, and not upwardly and backwardly, thereby providing, bymy particular construction and arrangement of fluid pressure passage,that such passage shall not be clogged up by the sand, this result beingfurther effected and insured by the position which the nozzle occupiesunder the overhanging inwardly extending part of the body portion 4 thatis produced by the obliquely disposed extremity 8 of the sand outletpassage 5 and that part of the *body portion 4 which extends over suchextremity. In short, the insifting of sand is positively prevented bythis arrangement of parts. a

It is to be understood that my invention is not limited to the exactdisposition of the fluid pressure supply pipe 11 or the exact formationof the outer end of the passage 9 to which such pipe is designed forconnection. For instance, as illustrated in Figs. 2 and 3, where 4?designates the body portion and 12 the fluid pressure nozzle, the fluidpressure passage, designated 9, may be of T-shape, the stem portion ofthe T passage extending downward and inward like the passage 9, and thebranches of the T opening laterally, as illustrated in Fig. 3, at bothsides of the body portion 4a": The fluid pressure supply pipe 11 may besecured to either one of these outer extremities or 1 branches of thepassage 9 as desired, while body portions of the sanders may be used oneitherside of the box or dome, no rights or lefts being required, eitherone of the branches being closed by the plug 13 and the other having thesupply pipe ll connected thereto.

In Fig. 4 is shown a form of the device especially adapted forapplication to existing sand domes where the sand'pipes extend downward,as indicated in that figure. I11 this form of the invention, the lowerend of the ordinary sand pipe is plugged, as in dicated at 15, and thebody portion of the sander, designated r, is secured in an open ingformed in the said pipe. In this embodiment of the invention 9designates the fluid pressure inlet passage which extends, first,inwardly and downwardly and thence downwardly and returned upon itselfto a point axially to the mouth or receiving end of the sand dischargepassage, the inner portion of said fluid pressure inlet passage beingformed by a nozzle designated 12, and connected as by a screw thread, asshown, to the inner end of a fluid pressure supply pipe 11 which in thisinstance extends entirely through the body portion at and constitutesthe major portion of the fluid pressure inlet passage. If desired, asindicated in dotted lines in this form, the fluid pressure inlet passagemay be opened into the upper inner end of the nozzle 1%. It is to beunderstood that in every instance, the nozzle has its discharge mouthdisposed in the axial line of the mouth or entrance end of the sandoutlet passage and that in any of the forms or embodiments of theinven-. tion, the discharge ends or mouths of the nozzle may be eitherstraight or flared. A straight end is illustrated in Fig. 5, wherein thenozzle is designated 12.

From the foregoing description in connection with the accompanyingdrawing, the practical operation of my improved track sander will beapparent, it being understood that a blast of air for instance, issuingfrom the mouth of the fluid pressure nozzle, will drive the sand out ofthe sand dome in an upward and outward direct-ion through the sandoutlet passage and down through a sand delivery pipe to the track rail.

It will be noted that I'have provided a very simple, durable andefficient construction of track sander, the use of which will avoid anywasting of the sand or the clogging or choking of the fluid pressurenozzle by the constant insifting of sand, and that may be easily appliedto any locomotive sand dome, the device being applied from the outsideand obviating the necessity of any inside pipe couplings.

Having thus described the invention what is claimed as new is: c

1. In a track sander, a sand pipe casting provided with a sand outletpassage and an independent T-shaped fluid pressure passage, the stem ofthe tee opening inward and having a nozzle connection, and the branchesof the tee opening outward, a closure for one of said branches, a fluidpressure pipe connected to the other branch, and a nozzle connected tothe inner end of the stem and having its mouth disposed in the axialline of the mouth of the sand discharge passage.

2. In a track sander, a sand pipe casting provided with a sand dischargepassage and an independent T-shaped fluid pressure passage, the stem ofthe tee opening inward and having a nozzle connection and the branchesof the tee opening laterally on opposite sides of the casting, a closurefor one of said branches and a fluid pressure supply pipe connected tothe other branch, and a nozzle connected to the stem portion of thefluid pressure passage at the inner end thereof and having its mouthdisposed in the axial line of the mouth or entrance end of the sanddischarge passage.

3. In combination with a sand dome, of a sander comprising a bodyportion secured to the dome and extending partially within and partiallywithout the same, said body portion being formed with an upwardly andoutwardly extending sand passage leading from the interior to the dome,the entrance end of said passage being defined by a wall which occupiesan oblique position and an overhanging relation to the portion of thesand dome to which the body portion of the device is attached, and anozzle for fluid pressure, said nozzle being connected to the inner endof said body portion with its discharge mouth pointing toward thereceiving end of the sand passage, said nozzle having its mouth locatedunderneath the overhanging inner portion of the body of the device andin spaced relation to the entrance end of the sand passage.

4. The combination with a sand dome, of a sand pipe casting secured tothe dome and provided with a sand passage extending upwardly andoutwardly from the sand dome with its inner end occupying an oblique orinclined overhanging position in the dome, and a fluid pressure nozzlesecured to said casting within the dome and extending downwardly andinwardly from said casting and thence downwardly and upwardly underneaththe first named portion of the nozzle, the mouth of said nozzle pointingtoward and spaced from the entrance end of the sand passa e.

5. The combination with a sand dome, of a sand pipe casting providedwith a sand passage which extends upwardly and outwardly from the sanddome, the casting being provided with an independent fluid pressurepassage which extends therethrough downwardly and inwardly into the domeand which includes a nozzle, the mouth of which points toward theentrance end of the sand passage, said fluid pressure passage at theinner end of its downwardly and inwardly extending portion, extendingdownwardly and thence returned upon itself and extending upwardly andoutwardly toward the sand passage, for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES P. WHITE.

WVitnesses:

J. E. 001), R. F. CAvINnss.

